You Are Observing a Developing Embryo Under a Microscope and See

question 17

Multiple Choice

You are observing a developing embryo under a microscope and see that it has a space in the middle of the endoderm, but no features of a notochord are present. In which stage of development is this embryo?

• A) zygote
• B) blastula
• C) gastrula
• D) fetus

Understand how and when to use the STAR technique in responses.

Grasp the significance of follow-up communication after an interview.

Realize the importance of appearance, nonverbal cues, and eye contact in online interviews.

Understand the role and preparation of references in job applications.

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Definitions:

Immediate Protection

Rapid defense mechanisms activated promptly to prevent infection or damage before long-term specific immunity develops.

Natural Killer Cell

A type of lymphocyte in the immune system capable of killing certain infectious organisms and tumor cells without prior immunization.

Lyses Tumor

The breakdown or destruction of tumor cells, often through chemical, biological, or physical means.

Virus-infected Cells

Cells that have been invaded by viruses, which hijack the cells' machinery to replicate and produce more viruses.